/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 20:11:42,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 20:11:42,430 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 20:11:42,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 20:11:42,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 20:11:42,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 20:11:42,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 20:11:42,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 20:11:42,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 20:11:42,458 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 20:11:42,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 20:11:42,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 20:11:42,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 20:11:42,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 20:11:42,460 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 20:11:42,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 20:11:42,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 20:11:42,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 20:11:42,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 20:11:42,462 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 20:11:42,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 20:11:42,463 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 20:11:42,463 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 20:11:42,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 20:11:42,463 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 20:11:42,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 20:11:42,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 20:11:42,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 20:11:42,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 20:11:42,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 20:11:42,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 20:11:42,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 20:11:42,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 20:11:42,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 20:11:42,466 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 20:11:42,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 20:11:42,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 20:11:42,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 20:11:42,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 20:11:42,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 20:11:42,664 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 20:11:42,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i [2023-12-24 20:11:43,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 20:11:43,762 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 20:11:43,762 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i [2023-12-24 20:11:43,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a203a819d/e782708ee0cf4a819ccb7e7f1ff2d870/FLAGa72c79977 [2023-12-24 20:11:43,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a203a819d/e782708ee0cf4a819ccb7e7f1ff2d870 [2023-12-24 20:11:43,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 20:11:43,782 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 20:11:43,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 20:11:43,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 20:11:43,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 20:11:43,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:11:43" (1/1) ... [2023-12-24 20:11:43,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d78ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:43, skipping insertion in model container [2023-12-24 20:11:43,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 08:11:43" (1/1) ... [2023-12-24 20:11:43,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 20:11:43,926 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i[917,930] [2023-12-24 20:11:43,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 20:11:44,021 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 20:11:44,033 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i[917,930] [2023-12-24 20:11:44,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 20:11:44,101 INFO L206 MainTranslator]: Completed translation [2023-12-24 20:11:44,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44 WrapperNode [2023-12-24 20:11:44,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 20:11:44,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 20:11:44,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 20:11:44,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 20:11:44,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,168 INFO L138 Inliner]: procedures = 33, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 499 [2023-12-24 20:11:44,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 20:11:44,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 20:11:44,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 20:11:44,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 20:11:44,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,223 INFO L175 MemorySlicer]: Split 138 memory accesses to 2 slices as follows [2, 136]. 99 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 18 writes are split as follows [0, 18]. [2023-12-24 20:11:44,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 20:11:44,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 20:11:44,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 20:11:44,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 20:11:44,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (1/1) ... [2023-12-24 20:11:44,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 20:11:44,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 20:11:44,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 20:11:44,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 20:11:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 20:11:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 20:11:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 20:11:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 20:11:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 20:11:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 20:11:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 20:11:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 20:11:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 20:11:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 20:11:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 20:11:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 20:11:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 20:11:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 20:11:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 20:11:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 20:11:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 20:11:44,443 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 20:11:44,445 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 20:11:44,999 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 20:11:45,022 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 20:11:45,022 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 20:11:45,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:11:45 BoogieIcfgContainer [2023-12-24 20:11:45,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 20:11:45,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 20:11:45,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 20:11:45,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 20:11:45,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 08:11:43" (1/3) ... [2023-12-24 20:11:45,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c0e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:11:45, skipping insertion in model container [2023-12-24 20:11:45,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 08:11:44" (2/3) ... [2023-12-24 20:11:45,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c0e8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 08:11:45, skipping insertion in model container [2023-12-24 20:11:45,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 08:11:45" (3/3) ... [2023-12-24 20:11:45,028 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-71.i [2023-12-24 20:11:45,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 20:11:45,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 20:11:45,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 20:11:45,085 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4dcf700a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 20:11:45,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 20:11:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-24 20:11:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 20:11:45,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:11:45,102 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 20:11:45,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:11:45,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:11:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2045531038, now seen corresponding path program 1 times [2023-12-24 20:11:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:11:45,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403039811] [2023-12-24 20:11:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:11:45,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:45,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:11:45,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:11:45,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 20:11:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:11:45,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 20:11:45,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:11:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-12-24 20:11:45,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 20:11:45,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:11:45,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403039811] [2023-12-24 20:11:45,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403039811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 20:11:45,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 20:11:45,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 20:11:45,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253930095] [2023-12-24 20:11:45,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 20:11:45,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 20:11:45,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:11:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 20:11:45,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 20:11:45,408 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-24 20:11:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:11:45,463 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-24 20:11:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 20:11:45,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-24 20:11:45,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:11:45,471 INFO L225 Difference]: With dead ends: 193 [2023-12-24 20:11:45,472 INFO L226 Difference]: Without dead ends: 96 [2023-12-24 20:11:45,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 20:11:45,476 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 20:11:45,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 20:11:45,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-24 20:11:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-24 20:11:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-24 20:11:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-24 20:11:45,508 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-24 20:11:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:11:45,509 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-24 20:11:45,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-24 20:11:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-24 20:11:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 20:11:45,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:11:45,511 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 20:11:45,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-24 20:11:45,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:45,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:11:45,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:11:45,716 INFO L85 PathProgramCache]: Analyzing trace with hash -433866812, now seen corresponding path program 1 times [2023-12-24 20:11:45,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:11:45,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691500114] [2023-12-24 20:11:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:11:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:11:45,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:11:45,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 20:11:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:11:45,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 20:11:45,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:11:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-24 20:11:45,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 20:11:45,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:11:45,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691500114] [2023-12-24 20:11:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691500114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 20:11:45,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 20:11:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 20:11:45,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561272579] [2023-12-24 20:11:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 20:11:45,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 20:11:45,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:11:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 20:11:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 20:11:45,922 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-24 20:11:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:11:46,016 INFO L93 Difference]: Finished difference Result 206 states and 298 transitions. [2023-12-24 20:11:46,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 20:11:46,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-24 20:11:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:11:46,017 INFO L225 Difference]: With dead ends: 206 [2023-12-24 20:11:46,018 INFO L226 Difference]: Without dead ends: 111 [2023-12-24 20:11:46,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 20:11:46,019 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 28 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 20:11:46,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 20:11:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-24 20:11:46,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2023-12-24 20:11:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-24 20:11:46,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-24 20:11:46,028 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-24 20:11:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:11:46,029 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-24 20:11:46,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-24 20:11:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-24 20:11:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 20:11:46,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:11:46,031 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 20:11:46,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 20:11:46,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:46,237 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:11:46,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:11:46,237 INFO L85 PathProgramCache]: Analyzing trace with hash -376608510, now seen corresponding path program 1 times [2023-12-24 20:11:46,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:11:46,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253834238] [2023-12-24 20:11:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:11:46,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:46,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:11:46,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:11:46,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 20:11:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:11:46,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 20:11:46,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:11:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-24 20:11:46,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 20:11:46,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:11:46,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253834238] [2023-12-24 20:11:46,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253834238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 20:11:46,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 20:11:46,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 20:11:46,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66204556] [2023-12-24 20:11:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 20:11:46,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 20:11:46,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:11:46,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 20:11:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 20:11:46,432 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-24 20:11:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:11:46,550 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2023-12-24 20:11:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 20:11:46,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-24 20:11:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:11:46,556 INFO L225 Difference]: With dead ends: 211 [2023-12-24 20:11:46,556 INFO L226 Difference]: Without dead ends: 112 [2023-12-24 20:11:46,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-24 20:11:46,561 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 22 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 20:11:46,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 638 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 20:11:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-24 20:11:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2023-12-24 20:11:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-24 20:11:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2023-12-24 20:11:46,576 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 139 [2023-12-24 20:11:46,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:11:46,576 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2023-12-24 20:11:46,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-24 20:11:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2023-12-24 20:11:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-24 20:11:46,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:11:46,578 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 20:11:46,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 20:11:46,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:46,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:11:46,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:11:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -376548928, now seen corresponding path program 1 times [2023-12-24 20:11:46,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:11:46,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156138640] [2023-12-24 20:11:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:11:46,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:11:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:11:46,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:11:46,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 20:11:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:11:47,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-24 20:11:47,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:11:47,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 20:11:48,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-24 20:11:48,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-12-24 20:11:48,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-24 20:11:49,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 20:11:49,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2023-12-24 20:11:49,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 20:11:49,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 27 [2023-12-24 20:11:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 308 proven. 151 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-24 20:11:49,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:11:49,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:11:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156138640] [2023-12-24 20:11:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156138640] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 20:11:49,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115477920] [2023-12-24 20:11:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:11:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 20:11:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 20:11:49,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 20:11:49,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-24 20:11:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:11:49,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-24 20:11:49,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:11:50,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 20:11:50,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 20:11:50,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 20:11:50,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-24 20:11:51,385 INFO L349 Elim1Store]: treesize reduction 57, result has 20.8 percent of original size [2023-12-24 20:11:51,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 54 [2023-12-24 20:11:51,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-24 20:11:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 168 proven. 136 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-12-24 20:11:51,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:11:55,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1115477920] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 20:11:55,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 20:11:55,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2023-12-24 20:11:55,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293283443] [2023-12-24 20:11:55,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 20:11:55,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-24 20:11:55,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 20:11:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-24 20:11:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2023-12-24 20:11:55,781 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 18 states have internal predecessors, (93), 8 states have call successors, (38), 7 states have call predecessors, (38), 8 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-12-24 20:12:02,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 20:12:06,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 20:12:10,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 20:12:14,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 20:12:17,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 20:12:17,002 INFO L93 Difference]: Finished difference Result 278 states and 376 transitions. [2023-12-24 20:12:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-24 20:12:17,003 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 18 states have internal predecessors, (93), 8 states have call successors, (38), 7 states have call predecessors, (38), 8 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) Word has length 139 [2023-12-24 20:12:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 20:12:17,004 INFO L225 Difference]: With dead ends: 278 [2023-12-24 20:12:17,004 INFO L226 Difference]: Without dead ends: 177 [2023-12-24 20:12:17,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=697, Invalid=2608, Unknown=1, NotChecked=0, Total=3306 [2023-12-24 20:12:17,006 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 322 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 282 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-24 20:12:17,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 565 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 1358 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2023-12-24 20:12:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-24 20:12:17,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 162. [2023-12-24 20:12:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 118 states have (on average 1.2203389830508475) internal successors, (144), 119 states have internal predecessors, (144), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-24 20:12:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 216 transitions. [2023-12-24 20:12:17,023 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 216 transitions. Word has length 139 [2023-12-24 20:12:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 20:12:17,023 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 216 transitions. [2023-12-24 20:12:17,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 18 states have internal predecessors, (93), 8 states have call successors, (38), 7 states have call predecessors, (38), 8 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-12-24 20:12:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 216 transitions. [2023-12-24 20:12:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-24 20:12:17,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 20:12:17,025 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 20:12:17,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 20:12:17,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-24 20:12:17,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 20:12:17,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 20:12:17,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 20:12:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1259755813, now seen corresponding path program 1 times [2023-12-24 20:12:17,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 20:12:17,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261920627] [2023-12-24 20:12:17,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:12:17,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 20:12:17,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 20:12:17,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 20:12:17,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 20:12:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:12:17,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-24 20:12:17,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:12:20,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 20:12:21,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-24 20:12:21,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-24 20:12:22,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-12-24 20:12:23,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-12-24 20:12:23,685 INFO L349 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2023-12-24 20:12:23,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 60 [2023-12-24 20:12:23,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 76 [2023-12-24 20:12:23,932 INFO L349 Elim1Store]: treesize reduction 200, result has 14.2 percent of original size [2023-12-24 20:12:23,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 100 treesize of output 171 [2023-12-24 20:12:24,202 INFO L349 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2023-12-24 20:12:24,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 73 [2023-12-24 20:12:24,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 20:12:24,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 274 treesize of output 210 [2023-12-24 20:12:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 151 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-12-24 20:12:28,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 20:12:37,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 20:12:37,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261920627] [2023-12-24 20:12:37,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261920627] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 20:12:37,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1310266379] [2023-12-24 20:12:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 20:12:37,122 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 20:12:37,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 20:12:37,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 20:12:37,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-24 20:12:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 20:12:37,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-24 20:12:37,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 20:12:40,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 20:12:40,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 20:12:41,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-24 20:12:41,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-24 20:12:42,678 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2023-12-24 20:12:42,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 27 [2023-12-24 20:12:42,919 INFO L349 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2023-12-24 20:12:42,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 56 [2023-12-24 20:12:43,102 INFO L349 Elim1Store]: treesize reduction 31, result has 36.7 percent of original size [2023-12-24 20:12:43,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 93 [2023-12-24 20:12:44,995 INFO L349 Elim1Store]: treesize reduction 1096, result has 8.1 percent of original size [2023-12-24 20:12:44,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 46 case distinctions, treesize of input 222 treesize of output 621 [2023-12-24 20:12:49,661 INFO L349 Elim1Store]: treesize reduction 82, result has 26.1 percent of original size [2023-12-24 20:12:49,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 88 [2023-12-24 20:12:50,191 INFO L349 Elim1Store]: treesize reduction 131, result has 18.1 percent of original size [2023-12-24 20:12:50,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 101 treesize of output 140 [2023-12-24 20:12:50,618 INFO L349 Elim1Store]: treesize reduction 125, result has 18.8 percent of original size [2023-12-24 20:12:50,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 202 treesize of output 234 [2023-12-24 20:12:53,339 INFO L349 Elim1Store]: treesize reduction 132, result has 22.8 percent of original size [2023-12-24 20:12:53,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 129 treesize of output 150 [2023-12-24 20:12:56,044 INFO L349 Elim1Store]: treesize reduction 849, result has 8.6 percent of original size [2023-12-24 20:12:56,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 46 case distinctions, treesize of input 1010 treesize of output 1139 [2023-12-24 20:13:27,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:27,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:29,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:30,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:30,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:31,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:31,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:32,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:33,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:33,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:34,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:34,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:34,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:35,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:36,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:37,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:37,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:38,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 116 [2023-12-24 20:13:45,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:45,952 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-24 20:13:45,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:46,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 188 [2023-12-24 20:13:46,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:46,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:47,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:47,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 214 [2023-12-24 20:13:47,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:48,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:48,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:48,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:49,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:49,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 214 [2023-12-24 20:13:49,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:49,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:50,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 188 [2023-12-24 20:13:50,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:50,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:51,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:51,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 268 [2023-12-24 20:13:51,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:52,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:52,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:53,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:53,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:53,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-12-24 20:13:54,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 83 [2023-12-24 20:13:54,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 242 [2023-12-24 20:13:54,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 34 [2023-12-24 20:13:55,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2023-12-24 20:13:56,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 74 [2023-12-24 20:13:58,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 56 [2023-12-24 20:13:59,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 34 [2023-12-24 20:13:59,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 34 [2023-12-24 20:14:18,588 INFO L349 Elim1Store]: treesize reduction 300, result has 27.4 percent of original size [2023-12-24 20:14:18,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 740 treesize of output 796 [2023-12-24 20:18:59,761 WARN L293 SmtUtils]: Spent 11.14s on a formula simplification. DAG size of input: 5210 DAG size of output: 5211 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-24 20:25:59,403 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 20:25:59,403 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 20:25:59,403 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 20:25:59,421 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 20:25:59,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-24 20:25:59,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-24 20:25:59,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 20:25:59,831 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 141 with TraceHistMax 19,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-589-6-135-4-21-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ∧-595-6-135-4-21-3-2-2-1 context. [2023-12-24 20:25:59,834 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 20:25:59,836 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 20:25:59,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 08:25:59 BoogieIcfgContainer [2023-12-24 20:25:59,838 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 20:25:59,839 INFO L158 Benchmark]: Toolchain (without parser) took 856056.76ms. Allocated memory was 282.1MB in the beginning and 846.2MB in the end (delta: 564.1MB). Free memory was 230.5MB in the beginning and 679.8MB in the end (delta: -449.4MB). Peak memory consumption was 504.9MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,841 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 202.4MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 20:25:59,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.74ms. Allocated memory is still 282.1MB. Free memory was 230.5MB in the beginning and 212.9MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.23ms. Allocated memory is still 282.1MB. Free memory was 212.9MB in the beginning and 209.5MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,841 INFO L158 Benchmark]: Boogie Preprocessor took 80.55ms. Allocated memory is still 282.1MB. Free memory was 209.5MB in the beginning and 204.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,841 INFO L158 Benchmark]: RCFGBuilder took 771.83ms. Allocated memory is still 282.1MB. Free memory was 204.8MB in the beginning and 220.9MB in the end (delta: -16.1MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,842 INFO L158 Benchmark]: TraceAbstraction took 854814.97ms. Allocated memory was 282.1MB in the beginning and 846.2MB in the end (delta: 564.1MB). Free memory was 219.9MB in the beginning and 679.8MB in the end (delta: -459.9MB). Peak memory consumption was 493.8MB. Max. memory is 8.0GB. [2023-12-24 20:25:59,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 202.4MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 318.74ms. Allocated memory is still 282.1MB. Free memory was 230.5MB in the beginning and 212.9MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.23ms. Allocated memory is still 282.1MB. Free memory was 212.9MB in the beginning and 209.5MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.55ms. Allocated memory is still 282.1MB. Free memory was 209.5MB in the beginning and 204.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 771.83ms. Allocated memory is still 282.1MB. Free memory was 204.8MB in the beginning and 220.9MB in the end (delta: -16.1MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. * TraceAbstraction took 854814.97ms. Allocated memory was 282.1MB in the beginning and 846.2MB in the end (delta: 564.1MB). Free memory was 219.9MB in the beginning and 679.8MB in the end (delta: -459.9MB). Peak memory consumption was 493.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 141 with TraceHistMax 19,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-589-6-135-4-21-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ∧-595-6-135-4-21-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 854.8s, OverallIterations: 5, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 19.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 372 mSDsluCounter, 1853 SdHoareTripleChecker+Invalid, 19.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1387 mSDsCounter, 288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1458 IncrementalHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 288 mSolverCounterUnsat, 466 mSDtfsCounter, 1458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 782 GetRequests, 708 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=4, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 690 ConstructedInterpolants, 91 QuantifiedInterpolants, 6409 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1480 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 3133/3420 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown